IV 



Hydrus, great 

 slender 



— blueish 



— short 

 fasciated 



— spiral 

 ■■ black-backed 

 ' dark-blue 

 ■— cinereous 

 — — — fishing 



■ marsh 



Langaya genus . 571 



Rattle-Snake, banded , 317 



— striped . 333 

 — — — wood . 335 

 ■■ miliary . 3o6 



SIREN GENUS . . 601 



Snake, horn-nose . 397 



■ crotaline . 400 

 . Clotho . . 401 



■ Lachesis . 402 



Atropos . 404 



Alecto . . 405 



Tisiphone . 406 



' Megaera . . 407 



— Spectacle . 409 



— — Russelian . 418 



■■ grass-green . 420 



severe . . 421 



. . bull-headed . 422 



crimson-sided . 423 



— hsemachate . 425 



— water-viper . 425 



white . . . 427 



— milk-white . 427 



CONTENT^. 



558 Snake, broad-cheeked 

 560 

 561 



562 

 563 

 564 

 566 

 567 

 567 

 568 

 570 



428 



fierce . 



42y 



short-headed « 





aiivei-eyeQ • 





coralline . 





VyclIlrlUd, * • 



'^00 





433 



aulic • • 



434 



Roinnaf rflvrt 



435 



TVTalnalnn 



436 



striated • . 



436 



Serenus • • 



'to 1 



ocellated 



438 



Argus 



439 



Chiametla 



440 



Java 



441 



Daboya . 



442' 



Brasihan 



443 



triangular-headed 444 



Panther . 



445 



Leopard 



445 



spotted . 



446 



ringed 



446 



French 



449 



dun 



450 



■ iEsculapian 



452 



mourning 



453 



• large-scaled 



456 



" carinated 



457 



• Molurus 



458 



• copper-bellied . 



458 



• cupreous 



459 



• Surinam 



460 



- corn 



460 



■ textile 



462 



- wampum 



463 



' black 



464 



